I'd like to pass some data over an audio cable (i.e from audio card to my cellphone) with a short cable.
I'm looking for some ideas for algorithms for achieving this. They of course should include the proper modulation technique to transfer the data over audio signal, so the cellphone could interpret it over it's microphone jack.
Ideas? ;)
(P.S - my current idea is using Biphase mark code. is it any good for this?)
Thanks.